3TECH TR-720L Manual De Usuario página 23

Non-Retraction valve (quick coupling)
Fig. 9.2
To prevent oral fl uids being drawn into the water line, quick coupling has Non-Retraction valve. If water is begin-
ning to leak from hand-piece, replace Non-Retraction valve.
– Remove the back-end gasket.
– Replace Non-Retraction valve.
Fig. 9.2
Clean-head system
– Scrub dirt and debris from the hand-piece.
– Rotate the hand-piece and immerse half of hand-piece head. Rotate and intermittently stop the hand-piece for about 2 to 3 seconds (about 3 times).
– Stop the hand-piece and wipe it dry. If the dirt couldn't be removed from the hole, remove the cartridge and clean by brush.
Fig. 8
Cleaning - bulb
Fig. 10
Wipe clean the cellular optical bulb entry point with an alcohol-immersed cotton swab. Remove all debris and
oil.
Notice!
Use only clean water to maintain the clean-head system.
.1
Fig. 10
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